Water and fire proofing composition for wood



' of parts is as follows:

Patented Dec. 2 8, 1926.

UNITED STATES,

FERNANDO SOMOZA VIVAS, LOS ANGELES, CALIFORNIA, ASSIGNOR TO N. 'W.

- STOWELL .A ND J. DOCKWEILER, TRUSTEES.

"PATENT OFFICE.

WA TER'AND FIRE PBOOFING COMPOSITION FOR WOOD.

No Drawing-L. Application filed June 14, 1923, Serial No. 645,348.- Renewed May 26, 1926.

lhe invention relates to a composition to be used for the impregnating of wood to make the same both water-proof and fireproof.- An object of the invention is the provision of 'a water and fireproofin'g composition for use in the impregnation of wood which shall be inexpensive to use, while being effective for the purpose for which it is designed.

The formula which it is at present preferred to use as. a physical embodiment of the invention with the preferred proportions Parts. 6 40 Sodium tungstate Potash alumn Borax Boric acid Sodium bichromate"; Isinglass V 12 Tannic' acid w .2 Sodium bisulfate 16 Water 850 The isinglass is given as a preferable .form

of an organic adhesive which is affected by the fixing ingredients, as tannic. acid, and

adapted to make the organic adhesivefin soluble when dryfother than tannicacid may be utilized, although this substance is an inexpensive andefiective agent for the purpose.

In the treatment ofithe wood with the jormula a single .bathembodying the named ingredients is made up, the wood is placed in a cylinder or tank, as is the usual ,prac; tice in the treatment of wood, which, is then closed, and the substance isi'pumped into the tank. and allowed to remain substantially twenty-four hours for each inch of penetration. It is found by experiment that the formula as given acts to dissolve the sap present in the wood and to fill the pores portions named and known equivalents may be substituted for some of the ingredients without departing from the spirit of the invention.

I claim 1..' Water and fireproofing material 7 forwood comprising in combination, an organic borax, a bichromate, sodium bi'sulfate and Water in proportions to make the wood water and'fireproof when the wood is impregnated therewith.

2. Water and fireproofing material for wood comprising in combination, an organic adhesive, tungstate' 'of sodium, an alum,. borax, boric acid, sodium bichromate, asubstance adapted to make the organic adhesive insoluble when dry, sodium bisulfate and water in proportions to make the wood water and fireproof when the wood is'impregnated therewith. r

3. Water and 'fireproofing material for adhesive, a substance adapted to make ,the 'orgamc adhesive'insoluble when dry, alum,

wood comprising in combination, tungstate of sodium, potash alum, borax, boric acid, sodium bichromate, isinglass, a substance adapted to makethe organic adhesive in- "soluble when dry, sodium bisulfate and water in proportions to make the wood water and fireproof when the Wood is impreg nat'ed therewith. 4

V 4. Water and fireproofing material for .woodeomprising in combination, tungstatenic. acid 2 parts, sodium a d FQW-P r s of sodium, 6 parts, potash. alum, 40 parts, borax, 40 parts, .boric acid, 20 parts, sodium bichromate, Sparts, isinglass, 12 parts, tan

bisulfate, 16 parts,- 

